Automobile wheel-help.



G. SPRUNG. AUTOMOBILE WHEEL HELP.

7 APPLICATION FILED J'AH.4,1910

Patented Mar. 7, 1911 ATTORNEY .difliculty frequently es" r g -.1 Shaw Specification of To all whom it may concern: Be it known that I, GEORGE SPRUNG, a

citizen of the Dominion of Canada, residing at- Vancouver, 'in' the Province of British Columbia, Canada, have invented a new and useful Automobile Wheel-Help, of which the following is a; specification. This invention relates to a device for enabling any self ropelled vehicle to extrionto itself out-5p a hole in soft ground into which it mayjheve worked.

When an auto vehicle becomes mired, so soon as it is found that it cannot withdraw itself, attempt is made to assist it by putting down a, board or plank that not only P Q YGntSthB wheel sinking-fartherinto the mudjbutenables it toroll'upward out of the hole which ithss formed. In this operation experienced in that the wheel will not roil'onto the board but continue to rotate in'the soft oundin' *Ldepndent'oi it. This difliculty overcome in the invention which isIthe subject of this application by providing a. means for confleeting aboard or short length, of track to 'theyhe'el, sothat' the wheel-1s compelled to rolljorward 'and'willtend to draw the board 'und 'r it, and' that when the wheel has passed of attachment and may be so presumed tohave surmounted the obstacle,

eutomatically'release itselffrom the at TQQI 'Ihe invention is particularly described in f the 'followin specifieetion, reference being *made tothc, rawings by which it is accompanied, inwhi'ch: I 'Fi rel shows in perspective a mired wh'ec with the attachment made to the re- ,lieving device, Rig. 2, a'jsimilar'viewof'the wheel ashaving surmounted the soft pla'ce and a's having st releesed itself from the httachment, which is;shown in part section, Fig.3 is a' similar "view showing a m'odified iformofthe connection p v 1 these drawings 2' represents the driving 1 whee of a self 'ropelle vehicle hnd 4 is a J short ilength o board or other material w, hit is desired .to passunder-the wheel 4155 track to enable the wheel to extricate 5Q 'it'sel fse; The board 4 is flexibly connected to -thB W'h8B1 in ony suitable manner that will hutomati'cellyL-releasQwhen thewheeY-has' 'pawed-over thepla'ce of attachment of it to theboard-i' simple means by i STATES PATENT OFFIGE.

chosen sr'nnne, 0F venoouvnn, BRITISH comimnm, CANADA. v i I ,V'AUTCIJMOBILE warren-HE P.

Letters lfatent.

short length 5 of chain or wire ro e, one end of which is provided with a T 6 t at can be dropped into a correspondingly shaped slot 9 in a plate 8 secured to the board and forming a retaining groove therewith, and the other end is provided with a, hook 7 which, when that end of the. connection is passed around the rim of the wheel behind one of the spokes, may be hooked onto the chain or rope in the manner shown.-

The groove behind the slot of the plate 8 is such that the T end 6 will retain its engagement with the board 4 when pulled toward the wheel from the front, but as shown in Fig. 2, .the groove whenihe wheel has passed over it, and it is drawn upward and backward to- -ward the wheel from behind: Ihus, when the wheel rotates in the direction'of the the wheel andwill roll itself up onto-it, but when in 'its further movement it has released.

on each side of the tread, and a stirrup iron '11 provided with eyes-12 at the. open end throu h which eyes a connecting pin 13 may e passed between the spokes. The closed nd-pi the stirrup 11 is placed in the hooks 1070f the board and the same-action takes place as before described when" the "wheel rotates.

Although the track section 4 has beendescribed as a board it will be obvious that it may edges in which notches maybe, cut for the the essential feature the provision" of a short section of tree the ve icle.

Having now to be protected in by"-.-Letters Patent, is:

1. -In a device of the class described, the combination with a driving wheel of o, self propelled vehicle, means for flexibly V r and means for arithmetical y releas ng the flexible conneetion'from the trackle'n' th' as said wheel rolls. toward one end o said attachment may be made by a track.

Patented Mar. '7, 1911." Application filed January 4, 1910'. Serial No.' 536,412.

passed over the groove the T. endwill be drawn out of the slot and the connection be made" of light metal havingfiangedfiexiblv connected to the driving wheel of" porticularly described my vention and the manner'of its use, I- hereby declare that what I claimas new and-desireof a short'section of ftiqckl v connectin 'fit to thewlieei will readily withdraw itself from arrow, it will draw the boa-rd tightly under Fig. 3 shows an iplternative construction where hooks '10 arejsecured to-the board reception, of the closed end of the stirrup;

of the invention being 2. In a device oi the class described; the combination with a driving wheel of a selfpropelled vehicle, ofa short section of track, a releasable flexible connection between saidwheel and said track, said connection including a cable securable'to said wheel, a T ati 4,111.11 device ofthe classdescribe'd, the

combination with a driving wheel'of a self propelled vehicle, of a short section of track,

a pull device connected to said wheel'and re-' leasably connected to said track section in 'virtue of which as saidwhecl turns it will ride up on said track section and roll toward one end thereof, said pull device automati cally disengaging said track section as said wheel rolls toward one end of the said track and passes the place where said pull device.

is connected. to said track section. V

" In testimony whereof I- have signed my name to this-specification in the presence of two subscribing witnesses.

Witnesses: v

ROWLAND BRrrr IN, ALEXANDER SMITH.

GEORGE SPRIlNGi a .4 

